EP 1874364 B2 20180103 - SURFACE CROSS-LINKED SUPERABSORBER TREATED WITH A SILICA COMPOUND AND A AL3+ SALT
Title (en)
SURFACE CROSS-LINKED SUPERABSORBER TREATED WITH A SILICA COMPOUND AND A AL3+ SALT
Title (de)
OBERFLÄCHENNACHVERNETZTE SUPERABSORBER BEHANDELT MIT KIESELSÄURE-VERBINDUNG UND EINEM AL3+-SALZ
Title (fr)
SUPER ABSORBANT REVETE A LA SURFACE ET TRAITE AVEC UN COMPOSE de SILICE ET UN SEL AL3+
Publication
Application
Priority
- EP 2006003694 W 20060421
- DE 102005018924 A 20050422
Abstract (en)
[origin: WO2006111402A2] The invention relates to a method for producing water-absorbent polymer entities, said method comprising the following steps: I. an untreated, water-absorbent polymer entity (Pu) with a retention of at least 35 g/g, defined according to the described test methods, is provided; and II. said water-absorbent, untreated polymer entity (Pu) is brought into contact with a permeability-increasing agent. The invention also relates to the water-absorbent polymer entities that can be obtained by said method, to water-absorbent polymer entities, a composite, a method for producing a composite, a composite that can be obtained by said method, chemical products containing water-absorbent polymer entities or a composite, and the use of water-absorbent polymer entities or the composite in chemical products.
IPC 8 full level
A61L 15/18 (2006.01); A61L 15/60 (2006.01); B01J 20/26 (2006.01); C08F 222/10 (2006.01); C08J 7/12 (2006.01)
CPC (source: EP US)
A61L 15/18 (2013.01 - EP US); A61L 15/60 (2013.01 - EP US); B01J 20/26 (2013.01 - EP US); C08J 7/12 (2013.01 - EP US); B01J 2220/68 (2013.01 - EP US); C08F 222/102 (2020.02 - EP US); Y10T 428/24942 (2015.01 - EP US)
Citation (opposition)
Opponent :
- DE 10249822 A1 20040513 - STOCKHAUSEN CHEM FAB GMBH [DE]
- WO 2004096304 A1 20041111 - STOCKHAUSEN INC [US], et al
- WO 2004069915 A2 20040819 - NIPPON CATALYTIC CHEM IND [JP], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005018924 A1 20061026; BR PI0610040 A2 20100622; CN 101175511 A 20080507; CN 101175511 B 20140326; EP 1874364 A2 20080109; EP 1874364 B1 20140514; EP 1874364 B2 20180103; JP 2008536987 A 20080911; JP 5374784 B2 20131225; TW 200702345 A 20070116; TW I404735 B 20130811; US 2009202805 A1 20090813; US 8071202 B2 20111206; WO 2006111402 A2 20061026; WO 2006111402 A3 20070614
DOCDB simple family (application)
DE 102005018924 A 20050422; BR PI0610040 A 20060421; CN 200680017007 A 20060421; EP 06724498 A 20060421; EP 2006003694 W 20060421; JP 2008507011 A 20060421; TW 95114266 A 20060421; US 91201106 A 20060421